Yamaha F50F Service Manual page 30

SPEC
Item
Stem diameter
Intake
Exhaust
Guide inside diameter
Intake and exhaust
Stem-to-guide clearance
Intake and exhaust
Stem runout limit
Intake
Exhaust
Valve springs
Free length
Tilt limit
Connecting rods
Small end inside diameter
Big end inside diameter
Connecting rod big end side
clearance
Crankpin oil clearance
Big end bearing thickness
Yellow
Red
Pink
Green
Crankshaft
Crankshaft journal diameter
Crankpin diameter
Crankpin width
Runout limit
Crankcase
Crankshaft main journal oil
clearance
Crankcase main journal
bearing thickness
Yellow
Red
Pink
Green
2-7
Specifications
Unit
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
Model
F50FED F50FEHT
5.475–5.490 (0.2156–0.2161)
5.460–5.475 (0.2150–0.2156)
5.500–5.512 (0.2165–0.2170)
0.025–0.052 (0.0010–0.0020)
0.05 (0.0020)
0.03 (0.0012)
39.85 (1.5689)
1.7 (0.07)
15.985–15.998 (0.6293–0.6298)
36.000–36.024 (1.4173–1.4183)
0.05–0.22 (0.0020–0.0087)
0.016–0.040 (0.0006–0.0016)
1.500–1.504 (0.0591–0.0592)
1.496–1.500 (0.0589–0.0591)
1.492–1.496 (0.0587–0.0589)
1.488–1.492 (0.0586–0.0587)
42.984–43.000 (1.6923–1.6929)
32.984–33.000 (1.2986–1.2992)
21.000–21.070 (0.8268–0.8295)
0.03 (0.0012)
0.012–0.036 (0.0005–0.0014)
1.502–1.506 (0.0591–0.0592)
1.498–1.502 (0.0590–0.0591)
1.494–1.498 (0.0588–0.0590)
1.490–1.494 (0.0587–0.0588)
F50FET FT50GET
6C13G11